The Future of Sound. Made Perfectly Clear. · 2017. 8. 28. · At KV2 Audio our vision is to...

User GuideEPAK2500R

The Future of Sound. Made Perfectly Clear.At KV2 Audio our vision is to constantly develop technologies that eliminate distortion and loss of information providing a true dynamic representation of the source.

Our aim is to create audio products that absorb you, place you within the performance and deliver a listening experience beyond expectations.

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IMPORTANT SAFETY INSTRUCTIONS

IMPORTANT SAFETY INSTRUCTIONS

Before using your EPAK2500R, be sure to carefully read the applicable items of these operating instructions and the safety suggestions

1. Keep this manual for future reference.

2. Heed all warnings.

3. Follow all instructions.

4. Do not use this unit near water. Do not spill water or other liquids into or on the unit. Do not operate

the EPAK2500R while wet or standing in liquid.

5. Clean only with dry cloth.

6. Do not block the air intake or exhaust ports. Install the unit in accordance with the instructions.

7. Do not operate the EPAK2500R near heat producing devices such as radiators, heat registers, stoves or other

apparatus that produce heat.

8. Always operate the unit with the chassis ground wire connected to the electrical safety earth. Do not defeat

the safety purpose of a grounding-type plug. A grounding type plug has two pins and a third grounding prong.

The third prong is provided for your safety. If the provided plug does not fit into your outlet, consult an electrician

for replacement of the obsolete outlet.

9. Connect only to AC power outlets rated 115-250V, 50-60Hz.

10. Do not use this EPAK2500R if the power cable is broken or frayed. Protect the power cable from being walked

upon or pinched particularly at the plugs and the point where it exits from the apparatus.

11. Only use accessories specified by the manufacturer.

12. The unit is intended to be used in a 19" rack. Follow the mounting instructions. When a rack on wheels is used,

use caution when moving the loaded rack to avoid injury from tipping over.

13. Unplug this apparatus during lightning storms or when unused for long periods of time.

14. Do not connect an EPAK2500R output in parallel or series with any other EPAK2500R's output. Do not connect

the EPAK2500R output to any other voltage source, such as battery, mains source, or power supply, regardless

of whether the EPAK2500R is turned on or off.

15. Do not run the output of any EPAK2500R back into another channel's input.

16. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged

in any way such as:

17. Do not remove top or bottom covers. Removal of the cover will expose hazardous voltages. There are

no serviceable parts inside and removal may void the warranty.

18. An experienced user shall always supervise this professional audio equipment, especially if inexperienced adults

or minors are using the equipment.

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE THE COVER.

NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.

WARNING: To prevent fire or electric shock, do not expose this equipment to rain or moisture.

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Contents · EPAK2500R

Contents

Introduction 3

Getting Started 4

Unpacking 4

Rack Mounting 4

Cooling 5

AC Requirements 5

Features 6

Front panel 6

Rear panel 7

Using the System 8

Normal Set Up 8 - 9

Using the Internal Sub In Insert 10

Using the Mid/Hi Insert 10

Feeding the Subwoofers from another source 11

Specifications 12

Block Diagram 13

ES Series · Basic Configurations 14

ES Series · Basic Configurations · Single 14

ES Series · Basic Configurations · Single 15

ES Series · Basic Configurations · Single and Double 16

ES Series · Basic Configurations · Double 17

Warranty · Service 18

Notes 19 - 20

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EPAK2500R · Introduction

IntroductionRack mount version of our popular EPAK2500 four-way, active control and amplification unit specifically designed

for the ES Series modular loudspeaker system. Two shock mounted fans move air across the heatsinks which seal

and protect the electronic components. This minimizes maintenance cycles and improves the components lifespan

and reliability. Both the EPAK2500 and EPAK2500R utilize KV2's industry leading 20MHz sampling for on board time

alignment and phase correction of all components in the ES system.

ApplicationSpecifically designed as the amplification and control elements for the ES loudspeaker systems in a full rack mount module

Portable PA

Fixed installations

Bars and Nightclubs

Houses of Worship

EPAK2500R - part number KVV 987 061 (230V)

KVV 987 181 (250V)

KVV 987 062 (115V)

The amplifier compliment inside the EPAK2500R is as follows:

High Frequency - 100-watt, Class AB, push pull, low intermodulation design.

Mid Frequency - 200-watt, Class AB, push pull, low intermodulation design.

line driver in addition at the mixer end to ensure that the line to the amplifier is driven correctly and the signal integrity

maintained.

Although this unit is simple to operate improper use can be dangerous. This is a very high-powered device that can put

out high voltages and sizeable currents. Always use safe operating techniques with the EPAK2500R.

FOR YOUR SAFETY, READ THE IMPORTANT PRECAUTIONS SECTION AS WELL AS THE INPUT, OUTPUT

AND POWER CONNECTION SECTIONS OF THIS MANUAL.

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EPAK2500R · Getting Started

UnpackingUnpack the EPAK2500R and check to see if there is any damage to it. If you find any damage notify your supplier

immediately. Only the consignee may institute a claim with the carrier for damage incurred during shipping. Be sure to

save the carton and all packing materials for the carrier's inspection.

Should you ever need to ship the unit, only use the original factory packaging. If the shipping carton is unavailable,

contact your supplier to obtain a replacement.

The EPAK2500R carton should contain:

Rack MountingEPAK2500R's will mount in standard 19" rack systems. Integral rear mounting rack ears are also provided for additional

support, do not rely on fixing and mounting the EPAK2500R using just the front panel as support. Use eight screws

and washers to mount the amplifier to the equipment rack rails (four for the front and four for the rear).

We recommend using a shock mounted rack for touring use to prolong the life of your EPAK2500R.

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EPAK2500R · Getting Started

CoolingThe EPAK2500R has a comprehensive cooling system featuring chassis-sealed PCB board mounting and shock

mounted, speed controlled fans. This means that the cooling system never drives air across PCB boards, connectors or

components ensuring prolonged electronic component lifespan and minimizing maintenance cycles.

Air is drawn into the front of the amplifier by the two fans on the rear panel, this passes over the cooling fins

of the heat sinks and exhausts through the rear. If the heat sink gets too hot, its sensing circuit will open the output

relay, disconnecting the load.

It is important to have an adequate air supply at the front of the amplifier, and enough space around the rear

of the amplifier to allow the cooling air to escape. If the unit is rack mounted, do not use doors or covers on the rear of

the rack; the exhaust air must flow without restriction. If you are using racks with closed backs, use fans on the rear rack

panel to ensure an ample air supply.

AC RequirementsA PowerCon cable is provided to connect the EPAK2500R to a suitable AC power supply.

The PowerCon is a connector without breaking capacity, i.e. the PowerCon should not be connected

or disconnected under load or while it is live. Always isolate your AC supply before disconnecting the PowerCon

connector.

Your EPAK2500R will be supplied pre set to the voltage used in your area.

The table below provides typical current draw figures for the EPAK2500R.

AC InputCurrent draw with

amplifier running at AveragePower (Each Channel)

Current draw withamplifier running at

Peak Power (Each Channel)

250V 8.25A 12.5A

230V 9A 14A

115V 18A 28A

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EPAK2500R · Features · Front panel

Front panel

1) AC Mains SwitchThe EPAK2500R has a combination AC Mains switch/

circuit breaker on the front panel. If the switch shuts off

during normal use, push it back to the ON position once.

If it will not stay on you should take the unit to qualified

service personnel to have it serviced.

will light and the unit will shut down.

audio limiter has been activated. When red it indicates

that the thermal limit of the EPAK2500R has been

exceeded and the unit has shut down because of this.

AC power is on. When red it indicates that there is a fault

condition sensed within the EPAK2500R and that the unit

needs servicing.

5) Signal Present

the EPAK2500R's input.

6) Sub Set UpThis switch is set according to which combination

of subwoofers is being used with the system. Refer to

'Using the System' for further information, the various

combinations are listed in the table within this section.

This controls the output level of the high frequency

amplifier to enable you to adjust the high frequency

component of the ES system to the desired level.

8) ES1.0 SystemThis switch sets the controller for use when either

a single ES1.0 is being used or a double system using

2 ES1.0's are being used. In this mode another EPAK2500R

would be required to power the second ES1.0 and both

switches should be set to 'Double'.

This is the master level control for the system and will

affect both the ES1.0 and the subwoofer outputs.

This is the level control for the External Sub output; it is

This is the level control for the Internal Sub output; it is

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EPAK2500R · Features · Rear panel

Rear panel

1) Main Input / Through Signal Out This is the main system input connector with associated

'Through Signal Output' connector for sending

unprocessed signal to other devices, such as more

EPAK2500R's to power more ES1.0's in a system.

2) Input ZThis switch selects one of two input impedance settings

for the EPAK2500R. The switch should be set to the 50Ω

EPAK2500R is being driven from a standard mixing

console output, then the 10kΩ setting should be used.

3) Mid/High In / Pre Control OutThis is an insert point for the Mid/High section of the

EPAK2500R, the signal sent to the ES1.0 cabinet. It

enables you to 'insert' an external device (a delay line for

example) into the signal that is being sent to the ES1.0.

With the associated switch in the 'Engage' setting the

Pre Control Out connector would send the signal to the

external device, and its output would be returned into

the Mid/High In connector.

4) Internal Sub InThis 'insert' point allows you to drive the internal

subwoofer amplifier from an external source. The signal for

the internal subwoofer amplifier is usually derived from

the Main Input on the EPAK2500R but with this Sub In

and associated switch the option is available to derive

the signal input for the internal subwoofer section from

a different source. For further information see 'Using

the System'.

5) External Sub In, External Sub OutApart from providing signal processing and power

amplification for driving the ES1.0 enclosure and ES

subwoofers the EPAK2500R also provides processed outputs

for feeding VHD3200 subwoofer amplifiers to drive various

combinations of ES and VHD subwoofers. The signal for this

is usually derived from the Main Input on the EPAK2500R

but with these Sub In and Sub Out connectors and

associated switch the option is available to derive the signal

input for the external subwoofer section from a different

source. For further information see 'Using the System'.

6) PowerCon Power ConnectorAccepts a standard PowerCon terminated AC cable.

7) FansThe cooling fans operate continuously while the

EPAK2500R is on. An internal temperature sensor

increases the speed of the fans during high temperature

conditions. Air enters through the front grille and exits

through the rear. Be sure to allow adequate air flow to the

front of the rack in which the EPAK2500R is mounted.

8) ES1.0 AP6 ConnectorAccepts a standard AP6 terminated loudspeaker cable for

connecting up to a single ES1.0 cabinet. We recommend

using 2.5 mm/core cables.

9) Internal Sub AP4 ConnectorAccepts a standard AP4 terminated loudspeaker cable

for connecting up to various ES series subwoofers. We

recommend using 2.5 mm/core cables.

Minimum load impedance is 4Ω !

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EPAK2500R Setting Internal External

Setting 1 1 x ES1.8 + 2 x ES1.5 1 1 x ES1.8 + 2 x ES1.5 1

Setting 2 2 x ES1.5 2 2 x ES1.5 2

Setting 3 2 x ES1.8 2 x ES1.8



Setting 6 (5-way system) 1 x ES2.5 2 x VHD1.21 3

EPAK2500R · Using the System

Normal Set UpThe EPAK2500R is designed to actively power one ES1.0 cabinet and associated subwoofer systems. For Normal Mode

operation signal is applied to the 'Main Input' connector and all the 'Insert' switches would be in the 'Disengage'

position.

The Input Z switch should be set to match the output impedance of the device feeding the EPAK2500R. If you are using

feeding more than one EPAK2500R then they should all be set to 10kΩ with the last one in the signal chain set to 50Ω.

Six different combinations of subwoofers are accommodated for when using the EPAK2500R.

The combinations are as follows:

Notes on Subwoofer Combinations1. Setting 1 is set up for driving 1 x ES1.8 + 2 x ES1.5. It can also drive 1 x ES1.8 + 1 x ES1.5, in this mode the relevant

Sub level control (either Internal or External) should be increased by up to +6dB.

2. Setting 2 is set up for driving 2 x ES1.5. It can also drive 3 x ES1.5, in this mode the relevant Sub level control (either

Internal or External) should be decreased by -3dB. This setting can also drive just 1 x ES1.5 with the relevant Sub

level control adjusted accordingly, dependant on the application.

3. Setting 6 is a true 5-way setting. The ES2.5’s are actively crossed over with the VHD1.21's.

Subwoofer Impedance

ES1.5 16Ω

ES1.8 8Ω

ES2.5 4Ω

ES2.6 8Ω

VHD1.21 8Ω

ES Subwoofers Impedances

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Normal Set UpThe EPAK 2500R is designed to actively power one ES1.0 cabinet and associated subwoofer systems.

Subwoofers are connected in parrallel, the total minimum impedance load should not be lover than 4Ω.

Normal Set Up With Additional SubwoofersTo power more subwoofers, use aditional subwoofer amplifier - VHD3200.

Use External Sub Out signal output for feeding VHD3200 subwoofer amplifiers.

'Internal' denotes subwoofers powered by the internal subwoofer amplifier.


'External' denotes subwoofers powered by an external VHD3200 subwoofer amplifier,

fed from the EPAK2500R's External Sub Out connector.

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Using the Mid/Hi InsertThe Mid/Hi Insert point gives you the ability to 'insert' a signal processing device into the ES1.0 signal chain.

For instance in some instances it may be necessary to 'delay' the signal going to the ES1.0 using a delay line. The Main

Input is used as the system input, as per Normal Mode, but the Mid/Hi insert switch is switched to 'Engage'. A feed is

taken to the delay line from the 'Pre Control Out' connector and the return from the delay line is connected to the 'Mid/

Hi In' connector as per the diagram:


'External' denotes subwoofers powered by an external VHD3200 subwoofer

amplifier, fed from the EPAK2500R's External Sub Out connector.




Using the Internal Sub In InsertThe Internal Sub Insert point gives you the ability to 'insert' a signal processing device into the ES Sub signal chain.

For instance in some instances it may be necessary to 'delay' the signal going to the ES Sub using a delay line. The Main

Input is used as the system input, as per Normal Mode, but the Internal Sub In insert switch is switched to 'Engage'.

A feed is taken to the delay line from the 'Pre Control Out' connector and the return from the delay line is connected to

the 'Internal Sub In' connector as per the diagram:

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Feeding the Subwoofers from another sourceTaking the following diagram as an example, if the ES1.0 was flying you might want to fly one ES2.5 above it with the

other two ES1.8's ground stacked beneath. In this instance it would be preferable to have both sets of subwoofers fed

by separate feeds from the mixing console, to give you independent level control to each of the subwoofer types,

and to have the ES1.0 fed by the main output from the mixing console:




Internal SubInsert Switch

Position

External SubInsert Switch

Position

Internal SubSignal derived

from

External SubSignal derived

from

Disengage (Out) Disengage Main Input Main Input

Engage (In) Disengage Internal Sub In Internal Sub In

Engage Engage Internal Sub In External Sub In

Disengage Engage Main Input External Sub In

The table below shows the various combinations of the Sub Insert switches and their effect on the signal

routing in the EPAK2500R:

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EPAK2500R · Specifications

High Frequency Amplifier Specification

Type Class AB Push-Pull low inter-modulation Mosfet design

with transformer balanced output

Rated Continuous Power 100W

Distortion <0.05%

Operating Bandwidth 2.5kHz to 28kHz

Mid Frequency Amplifier Specification

Type Class AB Push-Pull low inter-modulation Mosfet design

with transformer balanced output


Distortion <0.05%

Operating Bandwidth 500Hz to 2.5kHz

Mid-Bass Frequency Amplifier Specification

Type

mode


Distortion <0.05%

Operating Bandwidth 130Hz to 500Hz

Low Frequency Amplifier Specification

Type

mode


Distortion <0.05%

Operating Bandwidth 20Hz to 130Hz

Signal Input

Input Sensitivity 1.0V RMS

Input Impedance

Speaker Output

Speaker Output AP6 (Mid-Hi), AP4 (Sub)

Power

Power Connector Neutrik PowerCon®

Operating Voltage Range 100 to 120V@60Hz | 205 to 240V@50Hz | 225 to 260V@50Hz

Recommended Amperage 20A 115V | 10A 230V | 10A 250V

Physical Dimensions

Height 177 mm (6.96")

Width 481.4 mm (18.95")

Depth 415.4 mm (16.35")

Weight 30 kg (66lbs)

Specifications

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EPAK2500R · Block Diagram

Block Diagram

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ES Series · Basic Configurations

ES - Single A1Description Front view Wiring



One side of stereo single system

Up to 1000 people

Number of bass cabinets

- depends on the style of music

Products:Count Product

1 ES1.0

1 ES1.5

1 EPAK2500 / R

Accessories:Count Accessory Title

1 Cable MH60


Up to 1000 people




1 ES1.0

2 ES1.5

1 EPAK2500 / R


1 Cable MH60

Right side of stereo single system

Up to 1000 people




1 ES1.0

3 ES1.5

1 EPAK2500 / R


1 Cable MH60

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ES - Single B1Description Front view Wiring

ES - Single B2Description Front view Wiring

ES - Single CDescription Front view Wiring

Right side of stereo single system

Up to 1000 people




1 ES1.0

2 ES1.5

1 ES1.8

1 EPAK2500 / R


1 Cable MH60


Up to 1000 people




1 ES1.0

1 ES1.8

1 ES2.6

1 EPAK2500 / R


1 Cable MH60


Up to 1000 people




1 ES1.0

1 ES2.5

1 EPAK2500 / R


1 Cable MH60

1 KV2-H

(1 ES1.0 Vertical Bracket)

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ES - Single DDescription Front view Wiring

ES - Single EDescription Front view Wiring

ES - Double ADescription Front view Wiring


Up to 1000 people




1 ES1.0

2 ES2.6

1 EPAK2500 / R


1 Cable MH60


Up to 1000 people




1 ES1.0

2 ES1.8

1 EPAK2500 / R


1 Cable MH60

Right side of stereo double system

Up to 2000 people




2 ES1.0

1 ES2.5

2 ES1.8

2 EPAK2500 / R


2 Cable MH60

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ES - Double BDescription Front view Wiring

ES - Double CDescription Front view Wiring

ES - Double DDescription Front view Wiring


Up to 2000 people




2 ES1.0

4 ES1.8

2 EPAK2500 / R


2 Cable MH120


Up to 2000 people




2 ES1.0

4 ES2.6

1 EPAK2500 / R


2 Cable MH120


Up to 2000 people




2 ES1.0

2 ES2.5

2 EPAK2500 / R


2 Cable MH120

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EPAK2500R · Warranty · Service

WarrantyYour EPAK2500R is covered against defects in material and workmanship.

Refer to your supplier for more details.

ServiceIn the unlikely event that your EPAK2500R develops a problem, it must be returned to an authorized distributor,

service centre or shipped directly to our factory. Because of the complexity of the design and the risk of electrical

shock, all repairs must be attempted only by qualified technical personnel.

If the unit needs to be shipped back to the factory, it must be sent in its original carton. If improperly packed, the unit

may be damaged.

To obtain service, contact your nearest KV2 Audio Service Centre, Distributor or Dealer.

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EPAK2500R · Notes

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EPAK2500R · Notes

KV2 Audio InternationalNádražní 936, 399 01 MilevskoCzech Republic

Tel.: +420 383 809 320Email: [email protected]

www.kv2audio.com

KVV120030-00-04-0

The Future of Sound. Made Perfectly Clear.

The Future of Sound. Made Perfectly Clear. · 2017. 8. 28. · At KV2 Audio our vision is to...

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